CN1840770B - Oil leakage-proof and dust-proof device of sewing machine - Google Patents
Oil leakage-proof and dust-proof device of sewing machine Download PDFInfo
- Publication number
- CN1840770B CN1840770B CN2006100793437A CN200610079343A CN1840770B CN 1840770 B CN1840770 B CN 1840770B CN 2006100793437 A CN2006100793437 A CN 2006100793437A CN 200610079343 A CN200610079343 A CN 200610079343A CN 1840770 B CN1840770 B CN 1840770B
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- China
- Prior art keywords
- oil
- cloth pushing
- pushing table
- mentioned
- elastic packing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000009958 sewing Methods 0.000 title claims description 84
- 239000004744 fabric Substances 0.000 claims abstract description 135
- 238000007789 sealing Methods 0.000 claims abstract description 78
- 238000003860 storage Methods 0.000 claims abstract description 40
- 239000003921 oil Substances 0.000 claims description 134
- 238000012856 packing Methods 0.000 claims description 86
- 239000010687 lubricating oil Substances 0.000 claims description 66
- 239000000428 dust Substances 0.000 claims description 58
- 210000004907 gland Anatomy 0.000 claims description 21
- 238000011084 recovery Methods 0.000 claims description 21
- 238000006073 displacement reaction Methods 0.000 claims description 16
- 230000002093 peripheral effect Effects 0.000 claims description 16
- 230000013011 mating Effects 0.000 claims description 15
- 238000010521 absorption reaction Methods 0.000 claims description 14
- 230000033001 locomotion Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 11
- 239000000314 lubricant Substances 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 7
- 230000005484 gravity Effects 0.000 description 4
- 239000000945 filler Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 208000004350 Strabismus Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B71/00—Lubricating or cooling devices
- D05B71/02—Loop-taker lubricating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
- D05D2205/00—Interface between the operator and the machine
- D05D2205/32—Safety devices; Security devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2210/00—Applications
- F16N2210/32—Sewing machines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2260/00—Fail safe
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention relates to a structure, wherein the dust-proof flexible sealing plate is clamped between the cloth feeding table guide element fixed to cover the seamer support and the front cloth feeding table sealing guide element; at the same time. between the front cloth feeding table sealing guide element and the back cloth feeding table sealing guide element, between the back cloth feeding table sealing guide element and the sealing compress cover, the first and second flexible sealing plates are clamped for avoid oil leakage; the lubricant scraped by the first flexible sealing plate from the outer circumference of cloth feeding table is stored in oil storage; the stored lubricant via oil recycle tube is recycled; therefore, the invention can realize the effect of lubricant, to avoid staying scraped lubricant; and realize better dust-proof effect.
Description
(1) technical field
The present invention relates to a kind of anti-leakage of oil and dust guard of Sewing machines, in described Sewing machines, the cloth pushing table that is used for work feed in motion drive source such as the Sewing machines is configured in sewing machine frame inside, has the swing cloth pushing table simultaneously, the mounting portion of work feed tooth disposes to outside standing shape ground by the opening of Sewing machines framework, thereby swing send platform in front and back and the above-below direction oscillating motion, the anti-leakage of oil and the dust guard of described Sewing machines, thereby the lubricating oil that prevents to be accompanied by the oil supply in the sewing machine frame and disperse drains to the outside to be polluted needle plate peripheral part and sewing fabric etc. and prevents that outside dust such as the end of a thread from invading in the sewing machine frame by described opening along described swing cloth pushing table from above-mentioned opening.
(2) background technology
In the past, the anti-locking apparatus of the leakage of oil of this Sewing machines is known, open in the 2003-181186 communique as the spy and to put down in writing, the anti-locking apparatus of the leakage of oil of described Sewing machines has: the oil retaining wall main body, and it is fixed on and is used to cover the sewing machine frame opening on the sewing machine frame and is formed with the window that allows swing cloth pushing table swing displacement; The first elastic packing plate, it is configured in described oil retaining wall main body medial surface and has the mating holes that cooperates the swing cloth pushing table; The body seal gland to allow the move up and down state of displacement of the swing cloth pushing table and the first elastic packing plate, is held in the above-mentioned first elastic packing plate holder between described body seal gland and the above-mentioned oil retaining wall main body; Inner oil retaining wall, it is formed with the window that allows above-mentioned swing cloth pushing table swing displacement, and with and the aforementioned body sealing gland between have a predetermined gap state be fixed on the above-mentioned oil retaining wall main body; The second elastic packing plate, it has the mating holes that cooperates the swing cloth pushing table; The inner sealing gland is swung the state of the displacement that moves up and down of the cloth pushing table and the second elastic packing plate with permission, and the above-mentioned second elastic packing plate holder is held between described inner sealing gland and the above-mentioned inner oil retaining wall.When the swing of swing cloth pushing table, at first will wipe off attached to this lubricating oil of swinging the cloth pushing table outer peripheral face by the second elastic packing plate, further remaining lubricating oil is wiped off by the first elastic packing plate, these lubricating oil that scraped rely on gravity through formed gap between body seal gland and the inner oil retaining wall, naturally fall (flowing down) to below, frame inside, thereby lubricating oil can not be trapped on the first elastic packing plate, consequently, prevent that lubricating oil from draining to the outside from frame openings.
Because it is such having the existing sewing machine anti-oil leakage device of said structure, its utilization follows the mating holes inner circumferential edge portion of the second and first elastic packing plate and the CONTACT WITH FRICTION of the fore-and-aft direction relative motion of swing cloth pushing table outer peripheral face to do to scrape attached to the lubricating oil of swinging the cloth pushing table outer peripheral face in order to two steps, scrape effect in order to give full play to this oil, must set the contact force (surface pressing) of the mating holes inner circumferential edge portion of elastic packing plate and swing cloth pushing table outer peripheral face very by force, but the strong more easy more wearing and tearing of contact force, along with this wearing and tearing, contact force descends, thereby scrapes oily effect through variation behind the certain hour.In addition, in the anti-locking apparatus of existing leakage of oil, because the lubricating oil that is scraped relies on gravity by under the spontaneous current of space, described space is formed gap between body seal gland and the inner oil retaining wall, originally not only be difficult to flow to the below in the frame smoothly with regard to the high lubricating oil of viscosity and do not stay on the elastic packing plate, and especially, a large amount of oil supply are carried out in the corresponding work of making continuously for a long time, the thing followed, the lubricating oil quantitative change that is scraped is many, the natural down-off of lubricating oil can not be caught up with the amount of scraping, and becomes a large amount of lubricating oil and is trapped at once on the first elastic packing plate, consequently, for a long time make work continuously the time, sealing property is through descending behind the certain hour, thereby lubricating oil escapes to the outside from the opening of frame, and existence can not keep expecting that leakage of oil prevents the problem of performance.
And; in above-mentioned existing apparatus; because the first elastic packing plate is arranged on the oil retaining wall body inner surface with the state that elasticity connects; except scrape drop attached to the lubricating oil of swing cloth pushing table outer peripheral face; also realize preventing the dust reduction capability of the dust of frame outside from opening intrusion frame inside; but; the mating holes inner circumferential edge portion of the described first elastic packing plate is wearing and tearing easily as mentioned above; and; because the lubricating oil that scrapes is detained easily; damaged dust reduction capability in the early stage; outside dust enters into frame inside, and the dust that enters is thus sneaked in the lubricating oil of delay, thereby obstruction lubricating oil is dirty naturally and sealing property descends more; in the case, exist leakage of oil to prevent the problem that performance and anti-dust performance all can not highly stablely be kept.
(3) summary of the invention
The present invention makes in view of above-mentioned actual conditions; the objective of the invention is to; a kind of anti-leakage of oil and dust guard of Sewing machines are provided; its reliable all the time performance well scrapes the effect of lubricating oil; the lubricating oil that scrapes is not detained yet, and, prevent that dust from sneaking into lubricating oil; even for the work of making continuously for a long time, also can keep the leakproof oiliness energy and the dust reduction capability of expection for a long time highly stablely.
To achieve these goals, anti-leakage of oil of Sewing machines of the present invention and dust guard, be installed in the opening of sewing machine frame, support to can be along front and back and the swing cloth pushing table of above-below direction oscillating motion penetrate described opening, the anti-leakage of oil of described Sewing machines and dust guard prevent to follow the oil supply in the described sewing machine frame and the lubricating oil that disperses leaks into the outside from described opening, and prevent that outside dust is by in the described opening intrusion sewing machine frame, it is characterized in that, the anti-leakage of oil and the dust guard of described Sewing machines have: the cloth pushing table guide supports, itself and sewing machine frame are fixing covering described opening, and are formed with the window of the swing displacement that allows described swing cloth pushing table; Prevent dust and use the elastic packing plate, it is configured in the inner surface side of described cloth pushing table guide supports, and has the mating holes that cooperates with described swing cloth pushing table; Anterior cloth pushing table sealing guiding piece, described dustproofly be held between anterior cloth pushing table sealing guiding piece and the described cloth pushing table guide supports with the elastic packing plate holder, described anterior cloth pushing table sealing guiding piece allows described swing cloth pushing table and prevents dust with the displacement that moves up and down of elastic packing plate; Rear portion cloth pushing table sealing guiding piece, it is formed with the window of the swing displacement that allows described swing cloth pushing table, be used to prevent that the first elastic packing plate holder of leakage of oil is held between rear portion cloth pushing table sealing guiding piece and the described anterior cloth pushing table sealing guiding piece, rear portion cloth pushing table sealing guiding piece is fixed on the described cloth pushing table guide supports; Be used to prevent the second elastic packing plate of leakage of oil, it is configured in the inner surface side of described back cloth pushing table sealing guiding piece, and has the mating holes that cooperates with described swing cloth pushing table; And sealing gland, the described second elastic packing plate holder is held between described sealing gland and the described rear portion cloth pushing table sealing guiding piece, described sealing gland allows described swing cloth pushing table and is used to prevent the displacement that moves up and down of the second elastic packing plate of leakage of oil, anti-leakage of oil of described Sewing machines and dust guard constitute such structure, promptly, between the bottom of the described anterior cloth pushing table sealing guiding piece of the described first elastic packing plate ground arranged opposite that is used to prevent leakage of oil of clamping and rear portion cloth pushing table sealing guiding piece, be formed with oil storage portion, this oil storage portion can store by the described first elastic packing plate and scrape and the lubricating oil that flows down from the swing cloth pushing table, be connected with pump and be configured in oily recovery channel in the sewing machine frame an end suction inlet opening be connected to described oil storage portion, the lubricating oil of described oil storage portion storage is forced to be recovered to book office.
According to having as above the present invention of feature structure, not only scrape the lubricating oil that swing cloth pushing table outer peripheral face adheres in turn by the second and first elastic packing plate, and, scrape by this and still to adhere to the less amount of lubrication oil that remains in swing cloth pushing table outer peripheral face and finally can be scraped with the elastic packing plate, can wholely improve the lubricating oil ability that scrapes and prevent reliably also that lubricating oil from driveing to the outside from sewing machine frame and spill by dustproof.And be stored in oil storage portion immediately by the pressure suction force of coming self-pumping by the lubricating oil that the first elastic packing plate scrapes, can force to reclaim (oil extraction) to book office from described oil storage portion by oily recovery channel, therefore, even, corresponding to making work continuously and carry out a large amount of oil supply for a long time, it is many that the thing followed is scraped the high viscosity lubricants capacity, also can be all the time reliably, successfully force to reclaim described being scraped and land a large amount of lubricating oil, thereby prevent that lubricating oil is trapped on the first elastic packing plate, thus, can guarantee for a long time make work continuously the time also very strong sealing property.
And, because seal by dustproof elastic packing plate, can prevent that the outside dust such as the end of a thread that produce of sewing machine frame from passing through described opening intrusion sewing machine frame inside with the fixing window of sewing machine frame with the cloth pushing table guide supports that covers the sewing machine frame opening.Especially; few by the described dustproof oil mass that scrapes with the elastic packing plate; descend very little because lubricating oil is trapped in the dust reduction capability that causes on the sealing plate; so, can very stably keep the dustproof effect of expection for a long time, consequently; suppressing dust sneaks into lubricating oil and hinders the pressure recovery; simultaneously, inhibition is prevented dust with the elastic packing plate or is used to prevent the heel and toe wears such as the first elastic packing plate of leakage of oil, can very stably keep the energy of leakproof oiliness expectedly.
And, the lubricating oil that is scraped by the first elastic packing plate is stored in oil storage portion, the lubricating oil of described oil storage portion storage can force be recovered to book office through definite path of oily recovery channel, so, can not resemble the lubricating oil that scraped and rely on that thereby force of gravity is sagging inside the sewing machine frame to flow down that the parts of Sewing machines inside are dyed by greasy dirt the occasion, simultaneously can be to described parts overfuel, except that expection leakproof oiliness energy, anti-dust performance, also realize reaching the effect that is fit to the greasy property raising.
Above-mentioned prevents in leakage of oil and the dust guard according to Sewing machines of the present invention, put down in writing as claim 2, constitute such structure, promptly, described oil storage portion, by the through hole that forms near form the described anterior cloth pushing table sealing guiding piece bottom through hole and the described cloth pushing table guide supports, be connected communicatively with the perforation slotted hole that is used for recovered oil that forms on the sewing machine frame, be connected to the perforation slotted hole that is used for recovered oil of described sewing machine frame one end suction inlet opening of described oily recovery channel, the lubricating oil of described oil storage portion storage is by described each through hole, connect slotted hole and oily recovery channel and force to be recovered to book office, can be used in lubricating oil and force simplifying the structure of recovery, comprise when thereby this pressure recovery structure is assembled a plurality of structure important document, do not pay particular attention to the design and installation order, therefore, erecting device integral body easily.
And, in anti-leakage of oil of the present invention and dust guard, put down in writing as claim 5, about be assembled in the described sealing gland of cloth pushing table guiding piece double as in the sewing machine frame discretely, employing has the cloth pushing table guiding device of the function of the position, the left and right sides of determining the swing cloth pushing table, can have simultaneously to prevent that with being used to the second elastic packing plate of leakage of oil from remaining on the function of desired location.By reducing number of components, can further simplify by implementation structure.
And, in anti-leakage of oil of Sewing machines of the present invention and dust guard, put down in writing as claim 6, adopt such structure, promptly, the oil absorption porous part remains in the described oil storage portion, at least when the described first elastic packing plate moves down, described oiliness porous part contacts with the described first elastic packing plate and utilizes capillarity to draw the lubricating oil that scrapes from the swing cloth pushing table, by said structure, thereby be directed to the pressure recovery by capillarity by direct absorption of oil absorption porous part by the lubricating oil that the first elastic plate sealing plate scrapes, thereby prevent that the lubricating oil that is scraped is trapped on the first elastic packing plate, cause sealing property variation rapidly with preventing described hold-up from when swinging the cloth pushing table oscillating motion, increasing, thus, can obtain the further raising that prevents leakage of oil effect and dustproof effect of expection.
Other effect will become clear in following examples.
(4) description of drawings
Fig. 1 is the pith summary axis side view of having assembled in the first embodiment of the invention in the chain stitch machine of anti-leakage of oil and dust guard.
Fig. 2 is the exploded perspective view of Fig. 1 pith.
Fig. 3 is an expansion vertical profile side view of having assembled the state of anti-leakage of oil and dust guard.
Fig. 4 is an expansion vertical profile side view of having assembled the state of anti-leakage of oil and dust guard in the second embodiment of the invention.
Fig. 5 is the expansion vertical profile side view that other embodiment pith of the present invention is shown.
Fig. 6 is the expansion vertical profile side view that another other embodiment pith of the present invention is shown.
(5) specific embodiment
Fig. 1 is the pith brief strabismus map, and it illustrates the state that anti-leakage of oil of the present invention and dust guard is assembled in the workbench part of chain stitch machine.Fig. 2 is that pith decomposes axis side view.Fig. 3 is the expansion vertical profile side view of assembled state.
In described each figure, the 1st, constitute workbench sewing machine frame partly, form opening 2 at the 1a of front surface portion of this sewing machine frame 1.Inside at above-mentioned sewing machine frame 1, be used for cloth-feeding device a pair of swing cloth pushing table 3,4 in front and back can before and after and to swing up and down motion ground supported, and, it is outside outstanding to sewing machine frame 1 that head portion 3a, the 4a of a pair of swing cloth pushing table 3,4 in described front and back penetrates above-mentioned opening 2, and front and back work feed tooth (omitting diagram) is installed on described outstanding head portion 3a, the 4a.And, shown in the arrow X of Fig. 3, the a pair of swing cloth pushing table 3,4 in above-mentioned front and back is scheduled to the work feed action with front and back and above-below direction oscillating motion and by the work feed tooth, because the driving mechanism of described swing cloth pushing table 3,4 is same as the prior art, be well-known, therefore omit diagram and explanation.
On the opening 2 of above-mentioned sewing machine frame 1, anti-leakage of oil and dust guard have been equipped, its prevent to be accompanied by in sewing machine frame inside the lubricating oil that disperses to oil supply such as various slide units from above-mentioned opening 2 to external leaks, and prevent that the sewing machine frame 1 outside dust such as the end of a thread that produce from invading in the sewing machine frames 1 by above-mentioned opening 2.
Described anti-leakage of oil and dust guard 5 by cloth pushing table guide supports 7, dustproof seal guiding piece 11, be used to prevent that the second elastic packing plate 13 and the sealing gland 14 of leakage of oil from constituting with elastic packing plate 8, anterior cloth pushing table sealing guiding piece 10, rear portion cloth pushing table.Described cloth pushing table guide supports 7 covers above-mentioned opening 2 and is fixed on by screw 6 on the 1a of front surface portion of sewing machine frame 1, is formed with the window 7a that allows above-mentioned swing cloth pushing table 3,4 work feeds swing displacement.Describedly dustproofly be configured in the inner surface side of described cloth pushing table guide supports 7, have the mating holes 8a that cooperates with above-mentioned swing cloth pushing table 3,4 with elastic packing plate 8.Described anterior cloth pushing table sealing guiding piece 10 dustproofly is clamped between itself and the above-mentioned cloth pushing table guide supports 7 with elastic packing plate 8 described, have the window 10a that allows above-mentioned swing cloth pushing table 3,4 and the dustproof displacement that moves up and down with elastic packing plate 8, be fixed on the cloth pushing table guide supports 7 by above-mentioned screw 9 and screw 15.Described rear portion cloth pushing table sealing guiding piece 11 is formed with the window 11a of the work feed swing displacement that allows above-mentioned swing cloth pushing table 3,4, the first elastic packing plate 12 that will be used to prevent leakage of oil is clamped between itself and the above-mentioned anterior cloth pushing table sealing guiding piece 10, be separately fixed on above-mentioned cloth pushing table guide supports 7 and the above-mentioned anterior cloth pushing table sealing guiding piece 10 by above-mentioned screw 9 and screw 15, the described first elastic packing plate 12 has the mating holes 12a that cooperates with above-mentioned swing cloth pushing table 3,4.Second sealing plate 13 is configured in the inner surface side of described rear portion cloth pushing table sealing guiding piece 11, has the mating holes 13a that cooperates with above-mentioned swing cloth pushing table 3,4.The described second elastic packing plate 13 is clamped in it with described sealing gland 14 and above-mentioned rear portion cloth pushing table seals between the guiding piece 11, have the window 14a of the displacement that moves up and down that allows the above-mentioned swing cloth pushing table 3,4 and the second elastic packing plate 13, be fixed on the above-mentioned cloth pushing table guide supports 7 by above-mentioned screw 9.
Above-mentioned sealing gland about 14 separates and is assemblied in the sewing machine frame 1, by the pairing left and right cloth pushing table guiding piece 14A, the 14B double as that are separately fixed at by above-mentioned screw 9 on above-mentioned cloth pushing table guide supports 7 and above-mentioned anterior cloth pushing table sealing guiding piece 10 and the rear portion cloth pushing table sealing guiding piece 11.In addition, above-mentioned dustproof with elastic packing plate 8 be used to prevent that the first elastic packing plate 12 of leakage of oil and the second elastic packing plate 13 are by oil resistivity and the good various elastomeric material manufacturings of elasticity, in this embodiment, they are illustrated as two-layer laminate respectively, but also can be individual layers.
Thus, front end face periphery at above-mentioned rear portion cloth pushing table sealing guiding piece 11, the outstanding perisporium 16 that docks with the rear end face periphery of above-mentioned cloth pushing table sealing guiding piece 10 that forms of one, form oil storage portion 17 by this perisporium 16, it can be stored by above-mentioned and be used to prevent that the first elastic packing plate 12 of leakage of oil is from swinging the lubricating oil that cloth pushing table 3,4 scrapes.The through hole that is used for recovered oil 19 that forms near through hole 18 that forms the bottom by above-mentioned anterior cloth pushing table sealing guiding piece 10 and the above-mentioned cloth pushing table guide supports 7, described oil storage portion 17 is connected with the perforation slotted hole 20 of the front surface 1a that is formed on above-mentioned sewing machine frame 1.Is connected with pump (omit diagram) and is connected the inside, lower end of described perforation slotted hole 20 with the suction inlet 21a opening of oily recovery channel 21 1 ends of sewing machine frame 1 inner setting, shown in the arrow of Fig. 3, it constitutes such structure, promptly, in the above-mentioned oil storage portion 17 lubricating oil of storage through above-mentioned each through hole 18,19, connect slotted hole 20 and oily recovery channels 21, force to be recovered in the food tray (omitting diagram) that for example reclaims lubricating oil and wait book office.And, among Fig. 3 23 is filler plugs, and it is filled in and is fixed on the bottom that extends through above-mentioned cloth pushing table guide supports 7 and the through hole that is used for recovered oil 19 the insides that form, is positioned at than it and is communicated with the more useless bore portion of below of junction with perforation slotted hole 20 that the front surface 1a of above-mentioned sewing machine frame 1 forms.Described filler plug 23 by metals such as copper rod or not oil absorption resin form.
Hereinafter, the chain stitch machine action to anti-leakage of oil with said structure and dust guard 5 describes.
Rotation along with Sewing machines, the a pair of swing cloth pushing table 3,4 in above-mentioned front and back is front and back and above-below direction oscillating motion shown in Fig. 3 arrow X, and the work feed of being scheduled to by the front and back work feed tooth on the head portion 3a, the 4a that are installed in this swing cloth pushing table 3,4 (omitting diagram) moves.At this moment, on the outer peripheral face of swing cloth pushing table 3,4, adhere to the lubricating oil that disperses along with the oil supply of sewing machine frame 1 inside.
This swing cloth pushing table 3,4 is forwards swung when mobile, because the inner periphery sliding-contact of the mating holes 13a of its outer peripheral face and the second elastic packing plate 13, thereby scrape as mentioned above attached to the lubricating oil on swing cloth pushing table 3,4 outer peripheral faces, then, the inner periphery sliding-contact of the mating holes 12a of its outer peripheral face and the first elastic packing plate 12, thus scrape most of lubricating oil.And, still adhere to the last and dustproof also sliding-contact of mating holes 8a inner periphery of the less amount of lubrication oil that remains in swing cloth pushing table 3,4 outer peripheral faces although scrape with elastic packing plate 8 by this two-stage, thereby scraped, so, the high lubricating oil of whole performance scrapes ability, can prevent reliably that lubricating oil from escaping to sewing machine frame 1 outside from the opening 2 of the front surface 1a of sewing machine frame 1.
Thus, the lubricating oil that scrapes by the above-mentioned second elastic packing plate 13 relies on gravity to flow down to sewing machine frame 1 inner below, simultaneously, after the most of lubricating oil that scrapes by the first elastic packing plate 12 stores in the oil storage portion 17 at once, the pressure suction force that derives from pump works, by through hole 18,19, connect slotted hole 20 and oily recovery channel 21, for example force to be recovered to the book offices such as food tray that hold lubricating oil, thus, even for for a long time make work continuously and carry out a large amount of oil supply and situation that the high viscosity lubricants capacity that thereupon scraped is many under, all the time reliably, successfully force to reclaim the described a large amount of lubricating oil that scraped, prevent that lubricating oil is trapped on the first elastic packing plate 12, thus, for a long time make work continuously the time also can guarantee high sealing performance.
And, since by dustproof with elastic packing plate 8 seal be fixed on the sewing machine frame 1 and cover sewing machine frame 1 opening 2 cloth pushing table guide supports 7 also, window 7a, invade sewing machine frames 1 inside so can prevent the outside dust such as the end of a thread that produce of sewing machine frame 1 by opening 2.Especially; few by the described dustproof oil mass that scrapes with elastic packing plate 8; substantially, lubricating oil do not reduce anti-dust performance because of being trapped on the sealing plate 8; so can be very stable keep continues long-term expection anti-dust performance, and; consequently; sneak into lubricating oil and hinder to force reclaimed thereby both suppressed dust, suppressed dustproof with elastic packing plate 8 or be used to prevent the first elastic packing plate, the 12 abnormal friction losses of leakage of oil again, and can very stably keep the leakproof oiliness energy of expection.
And, because the lubricating oil that scrapes by the first elastic packing plate 12 that is used for preventing leakage of oil is stored in after the oil storage portion 17, fixed access through through hole 18,19, perforation slotted hole 20 and oily recovery channel 21 is forced to reclaim at book office, so, the parts of sewing machine frame 1 inside are not dyed by greasy dirt, described parts are not carried out overfuel, except the leakproof oiliness energy of keeping expection, anti-dust performance, can keep suitable greasy property yet.
And, in the first embodiment, in anti-leakage of oil and dust guard 5, because by about cloth pushing table guiding piece 14A, the 14B double as sealing gland 14 of assembled configuration in sewing machine frame 1 discretely, it can have concurrently by described sealing gland 14 determines the function of swing position, cloth pushing table 3,4 left and right sides and will be used to prevent that the second elastic packing plate 13 of leakage of oil from compressing the function that is held in a predetermined position, compare with sealing gland and cloth pushing table being provided with the ground situation respectively, can cut down number of components and obtain structure and oversimplify more.
Fig. 4 illustrates second embodiment of the invention, is the expansion vertical profile side view that anti-leakage of oil of the present invention and dust guard 5 are assembled in state in the sewing machine frame 1.In this embodiment, dock with the rear end face edge part of anterior cloth pushing table sealing guiding piece 10 by making from the outstanding perisporium 16 that forms of front end face edge part one of above-mentioned rear portion cloth pushing table sealing guiding piece 11, former and later two seal guiding piece 10, form oil storage portion 17 between 11, an end suction inlet 21a who is connected with pump (omit diagram) and is configured in the oily recovery channel 21 of sewing machine frame 1 inside is connected with described oil storage portion 17 direct openings, shown in Fig. 4 arrow, the lubricating oil that constitute storage in the above-mentioned oil storage portion 17 are by oily recovery channel 21 and the structure of book office such as force to be recovered in the food tray (omitting diagram).
Compare with the situation of above-mentioned first embodiment, in the situation of this second embodiment, because can not keep in advance oily recovery channel 21 is assembled in the sewing machine frame 1, so in the time of each constitutive requirements assembling of anti-leakage of oil and dust guard 5, must pay special attention to design assemble sequence etc., correspondingly be used for lubricating oil and force the structure of recovery to become complicated slightly, can guarantee anti-leakage of oil and the anti-dust performance identical with first embodiment.And in second embodiment, identical Reference numeral is enclosed at parts, the identical position identical with first embodiment, omits its explanation.
And, in the above-described embodiment, the situation that oil storage portion 17 is formed the space is illustrated, as shown in Figure 5, in this oil storage portion 17, when the above-mentioned first elastic packing plate 12 moves down, draw by capillarity and to contact with the bottom of this first elastic packing plate 12 and, also can keep oil absorption porous parts 22 such as felted terxture from swinging the lubricating oil that cloth pushing table 3,4 outer peripheral faces are scraped.In this situation, directly draw by oil absorption porous part 22 by capillarity by the lubricating oil that the first elastic packing plate 12 scrapes, force to reclaim thereby can lead, therefore, the lubricating oil that is scraped is trapped on first elastic plate 12, increase described hold-up so that sealing property variation rapidly in the time of preventing to swing cloth pushing table 3,4 oscillating motions, thus, can obtain anti-leakage of oil effect of expection and dustproof effect and further improve.
And, in the situation of Fig. 5, only when the first elastic packing plate 12 moves down, oil absorption porous part 22 is contacted with the bottom of the described first elastic packing plate 12, as shown in Figure 6, the pars intermedia lower end of the first elastic packing plate, 12 thickness directions forms perforate 12b, remain in the oil storage portion 17 with the state that a part of 22a enters in the described perforate 12b by oil absorption porous part 22, no matter the first elastic packing plate 12 moves up and down, all the time keep in touch with oil absorption porous part 22, the oily hold-up of being detained the first elastic packing plate 12 thus still less can obtain sealing property and further improve.
Claims (8)
1. the anti-leakage of oil and the dust guard of a Sewing machines, it is installed in the sewing machine frame opening, can before and after and the swing cloth pushing table that supports of above-below direction oscillating motion penetrate described opening, the anti-leakage of oil of described Sewing machines and dust guard prevent to be accompanied by the oil supply in above-mentioned sewing machine frame and the lubricating oil that disperses leaks into the outside from above-mentioned opening, with prevent outside dust and invade in the sewing machine frame by above-mentioned opening, it is characterized in that
The anti-leakage of oil and the dust guard of described Sewing machines have: the cloth pushing table guide supports, and itself and sewing machine frame are fixing covering above-mentioned opening, and are formed with the window of the swing displacement that allows above-mentioned swing cloth pushing table; Prevent dust and use the elastic packing plate, it is configured in the inner surface side of described cloth pushing table guide supports, and has the mating holes that cooperates with above-mentioned swing cloth pushing table; Anterior cloth pushing table sealing guiding piece, described dustproofly be held between anterior cloth pushing table sealing guiding piece and the above-mentioned cloth pushing table guide supports with the elastic packing plate holder, described anterior cloth pushing table sealing guiding piece allows above-mentioned swing cloth pushing table and prevents dust with the displacement that moves up and down of elastic packing plate; Rear portion cloth pushing table sealing guiding piece, it is formed with the window that allows above-mentioned swing cloth pushing table swing displacement, be used to prevent that the first elastic packing plate holder of leakage of oil is held between rear portion cloth pushing table sealing guiding piece and the above-mentioned anterior cloth pushing table sealing guiding piece, rear portion cloth pushing table sealing guiding piece is fixed on the above-mentioned cloth pushing table guide supports; Be used to prevent the second elastic packing plate of leakage of oil, it is configured in the inner surface side of described back cloth pushing table sealing guiding piece, and has the mating holes that cooperates with above-mentioned swing cloth pushing table; And sealing gland, the described second elastic packing plate holder is held between described sealing gland and the above-mentioned rear portion cloth pushing table sealing guiding piece, and described sealing gland allows above-mentioned swing cloth pushing table and is used to prevent the displacement that moves up and down of the second elastic packing plate of leakage of oil,
It constitutes such structure, promptly, clamping is above-mentioned to be used to prevent between the bottom of the above-mentioned anterior cloth pushing table sealing guiding piece of the first elastic packing plate ground arranged opposite of leakage of oil and rear portion cloth pushing table sealing guiding piece, form oil storage portion, it can store by the above-mentioned first elastic packing plate and scrape and the lubricating oil that flows down from the swing cloth pushing table, an end suction inlet opening that is connected with pump and is configured in the oily recovery channel in the sewing machine frame is connected to described oil storage portion, and the lubricating oil of above-mentioned oil storage portion storage is forced to be recovered to book office.
2. the anti-leakage of oil and the dust guard of Sewing machines as claimed in claim 1, wherein, above-mentioned oil storage portion, by the through hole that forms near form the above-mentioned anterior cloth pushing table sealing guiding piece bottom through hole and the above-mentioned cloth pushing table guide supports, be connected with the perforation slotted hole that is used for recovered oil that forms on the sewing machine frame, one end suction inlet opening of above-mentioned oily recovery channel is connected to the perforation slotted hole that is used for recovered oil of described sewing machine frame, the lubricating oil of described oil storage portion storage by above-mentioned each through hole, connect slotted hole and oily recovery channel forces to be recovered to book office.
3. the anti-leakage of oil and the dust guard of Sewing machines as claimed in claim 1, wherein, between former and later two cloth pushing table sealing guiding pieces, dock with the rear end face peripheral part of anterior cloth pushing table sealing guiding piece by the outstanding perisporium that forms of front end face peripheral part one from above-mentioned rear portion cloth pushing table sealing guiding piece, form described oil storage portion, be connected with pump and the direct opening of suction inlet that is configured in oily recovery channel one end in the sewing machine frame is connected to described oil storage portion.
4. the anti-leakage of oil and the dust guard of Sewing machines as claimed in claim 1, wherein, above-mentioned dustproof with the elastic packing plate, be used to prevent that the first elastic packing plate of leakage of oil and the second elastic packing plate from being the sealing plate two-layer laminate made by oil resistivity and the good various elastomeric materials of elasticity.
5. the anti-leakage of oil and the dust guard of Sewing machines as claimed in claim 1, wherein, about the cloth pushing table guiding piece that is assemblied in configuration in the sewing machine frame that separates be also used as above-mentioned sealing gland.
6. as the anti-leakage of oil and the dust guard of claim 1,2 or 3 described Sewing machiness, wherein, the oil absorption porous part remains in the described oil storage portion, at least when the above-mentioned first elastic packing plate moved down, described oil absorption porous part contacted with described first elastic plate sealing and utilizes capillarity to draw the lubricating oil that scrapes from the swing cloth pushing table.
7. the anti-leakage of oil and the dust guard of Sewing machines as claimed in claim 6, wherein, described oil absorption porous part remains in the oil storage portion, and only when the above-mentioned first elastic packing plate moved down, described oil absorption porous part contacted with the first elastic packing plate bottom.
8. the anti-leakage of oil and the dust guard of Sewing machines as claimed in claim 6, wherein, described oil absorption porous part enters state in the perforate that the thickness mid portion lower end of the described first elastic packing plate forms with its part, remains in the oil storage portion.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005095997A JP4547672B2 (en) | 2005-02-28 | 2005-02-28 | Oil leakage prevention and dustproof device for sewing machine |
| JP2005-095997 | 2005-02-28 | ||
| JP2005095997 | 2005-02-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1840770A CN1840770A (en) | 2006-10-04 |
| CN1840770B true CN1840770B (en) | 2011-06-15 |
Family
ID=37029949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100793437A Expired - Fee Related CN1840770B (en) | 2005-02-28 | 2006-02-28 | Oil leakage-proof and dust-proof device of sewing machine |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4547672B2 (en) |
| KR (1) | KR101085480B1 (en) |
| CN (1) | CN1840770B (en) |
| TW (1) | TW200706730A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009082298A (en) * | 2007-09-28 | 2009-04-23 | Brother Ind Ltd | Lubricating device of sewing machine |
| JP5234334B2 (en) * | 2008-05-29 | 2013-07-10 | ヤマトミシン製造株式会社 | Feeding arm shape flat stitch machine |
| CN105420952A (en) * | 2015-12-23 | 2016-03-23 | 杰克缝纫机股份有限公司 | Oil leakage preventing device of feed dog rack of sewing machine |
| CN106948104B (en) * | 2017-04-27 | 2023-02-07 | 浙江中捷缝纫科技有限公司 | Dustproof sewing machine |
| CN110080883B (en) * | 2019-06-04 | 2021-04-06 | 中国航空工业集团公司北京长城计量测试技术研究所 | A online extrinsic cycle auxiliary device of small leakage lubricating oil for sealing device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1256331A (en) * | 1998-12-08 | 2000-06-14 | 大和缝纫机制造株式会社 | Sewing machine |
| CN1323932A (en) * | 2000-05-12 | 2001-11-28 | 大和缝纫机制造株式会社 | Sewing machine |
| CN1495313A (en) * | 2002-09-19 | 2004-05-12 | 大和缝纫机制造株式会社 | Oil-leaking-proof device for sewing machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0410876U (en) * | 1990-05-16 | 1992-01-29 | ||
| JP2003181186A (en) * | 2001-12-14 | 2003-07-02 | Juki Corp | Oil leakage prevention device for sewing machine |
| JP4236948B2 (en) * | 2003-02-07 | 2009-03-11 | ペガサスミシン製造株式会社 | Sewing machine feeder |
-
2005
- 2005-02-28 JP JP2005095997A patent/JP4547672B2/en not_active Expired - Fee Related
-
2006
- 2006-02-27 TW TW095106522A patent/TW200706730A/en not_active IP Right Cessation
- 2006-02-28 KR KR1020060019143A patent/KR101085480B1/en active IP Right Grant
- 2006-02-28 CN CN2006100793437A patent/CN1840770B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1256331A (en) * | 1998-12-08 | 2000-06-14 | 大和缝纫机制造株式会社 | Sewing machine |
| CN1323932A (en) * | 2000-05-12 | 2001-11-28 | 大和缝纫机制造株式会社 | Sewing machine |
| CN1495313A (en) * | 2002-09-19 | 2004-05-12 | 大和缝纫机制造株式会社 | Oil-leaking-proof device for sewing machine |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2003-181186A 2003.07.02 |
| JP特开2004-236945A 2004.08.26 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1840770A (en) | 2006-10-04 |
| JP2006239341A (en) | 2006-09-14 |
| TW200706730A (en) | 2007-02-16 |
| TWI331175B (en) | 2010-10-01 |
| JP4547672B2 (en) | 2010-09-22 |
| KR20060095514A (en) | 2006-08-31 |
| KR101085480B1 (en) | 2011-11-21 |
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